a |
b |
a |
b |
A.(-1,-11) | B.(-1,11) | C.(1,-11) | D.(1,11) |
a |
b |
a |
b |
A.(x,-y) | B.(-x,-y) | C.(-y,-x) | D.(-x,y) |
AC |
1 |
2 |
CB |
CE |
1 |
4 |
ED |
A.(-8,-
| B.(-
| C.(0,1) | D.(0,1)或(2,
|
OA |
OB |
OC |
AB |
A.(6,0) | B.(-6,0) | C.(-2,6) | D.(-2,0) |
. |
a |
b |
a |
. |
b |
. |
a |
b |
© 2017-2019 超级试练试题库,All Rights Reserved.